Laser shock peened rotor components for turbomachinery

Details Laser shock peened rotor components for turbomachinery Laser shock peened rotor components for turbomachinery

1994-10-06

1996-02-20

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Specific casing or vane material

416198A, F01D 124

Patent

active

054924472

ABSTRACT:
Turbomachinery rotor components having a metallic body with at least a portion of the body subject to a tensile stress field due to centrifugal and thermal growth induced forces generated by the rotor when the rotor is rotating, at least one stress riser in the stress field portion that causes stress concentration when the rotor is rotating, and at least one region of the component around the stress riser having deep compressive residual stresses imparted by laser shock peening (LSP).

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American Machinist, "Laser Shocking Extends Fatigue Life", by John A. Vaccari, pp. 62-64, Jul. 1992, A Penton Publication.
J. Vaccari: "Laser Shocking Extends Fatigue Life," American Machinist, Jul. 1992. pp. 82-84.
Clauer et al: "Laser Shock Processing Increases the Fatigue Life of Metal Parts," Materials and Processing Report, Sep. 1991. pp. 3-5.

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